A Boolean algebra which is compact in its order-sequential topology needs to be ccc, must not add an independent real as a forcing (hence must not embedd the Cantor algebra), and the only Hausdorff case is the powerset of omega. We look for examples of such algebras (non-Hausdorff, hence non-Maharam) and the corresponding forcing restrictions.
Order-sequential compactness
20.11.2014 15:00 - 16:30
Organiser:
KGRC
Location:
SR 101, 2. St., Währinger Str. 25